Startapp by time. This app help you to lunch app by time, you can sett time app "Startapp by time" will open any apps at set time, it allow witch day of week to open the app. Even if app is foreground it will open, even the app give an error it will restart the app. By open app it mean any app what is instaled on phone. The pluss of app is, the screen will go on.
Also the app will not open the app at fixed time it may have delay between 1-15 minute, because use android schedule do not take resources of your system.